Passnet (パスネット Pasunetto?) was a stored-fare system using magnetic cards of the 22 members of the Passnet Association in the Kantō region of Japan. It was available between October 14, 2000 and January 11, 2008 in 1,000, 3,000 and 5,000 yen varieties.
The Passnet system was superseded by the Pasmo contactless smart card system introduced on March 18, 2007. Sales of Passnet cards ceased from January 11, 2008, and they were no longer able to be used in ticket gates from March 15, 2008. Passnet cards are still be able to be used to purchase tickets from ticket machines after this date.